Please select Into the mobile phone version | Continue to access the computer ver.
Cannot get rid of FLICKER
1696 28 2018-4-21
Uploading and Loding Picture ...(0/1)
o(^-^)o
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Friends,
the flicker is killing me. I shot in 4k 24 with anti-flicker settings on and in Premiere I cannot get it to disappear. I shot outside, in DLOG, at 5600K. Anyone have a solution in post? DRIVING ME MAD.

Thanks dudes!
2018-4-21
Use props
Hurley1718
Captain
Flight distance : 549295 ft
  • >>>
United States
Offline

Can you post a sample of the flicker you are talking about?
2018-4-21
Use props
Aardvark
Captain
Flight distance : 384432 ft
  • >>>
Offline

Try 30 fps, a good bit smoother than 24 fps. The anti flicker (50/60 Hz) really only comes into play when using a.c lights (U.K/U.S).
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Hurley1718 Posted at 2018-4-21 13:42
Can you post a sample of the flicker you are talking about?




Right here brother! Thanks for the interest.
2018-4-21
Use props
Aardvark
Captain
Flight distance : 384432 ft
  • >>>
Offline

Aardvark Posted at 2018-4-21 14:26
Try 30 fps, a good bit smoother than 24 fps. The anti flicker (50/60 Hz) really only comes into play when using a.c lights (U.K/U.S).

Or better still with the P4P 60 fps.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Aardvark Posted at 2018-4-21 14:26
Try 30 fps, a good bit smoother than 24 fps. The anti flicker (50/60 Hz) really only comes into play when using a.c lights (U.K/U.S).

The issue is the companies I shoot for demand 24FPS in almost all situations. I am unfamiliar with how easy it is to convert 30FPS footage to 24FPS, or if shooting in 4k creates more issues than say shooting in 1080P or 2.7K. Thanks for the response friend!
2018-4-21
Use props
Aardvark
Captain
Flight distance : 384432 ft
  • >>>
Offline

fans5383f7b5 Posted at 2018-4-21 14:33
The issue is the companies I shoot for demand 24FPS in almost all situations. I am unfamiliar with how easy it is to convert 30FPS footage to 24FPS, or if shooting in 4k creates more issues than say shooting in 1080P or 2.7K. Thanks for the response friend!

"I am unfamiliar with how easy it is to convert 30FPS footage to 24FPS"

Near impossible I would think :-)

It just seems a bit odd nowadays to be recording at 24 fps.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Aardvark Posted at 2018-4-21 14:37
"I am unfamiliar with how easy it is to convert 30FPS footage to 24FPS"

Near impossible I would think :-)

Hmm,

Know of any work around in post for what I got?
2018-4-21
Use props
Aardvark
Captain
Flight distance : 384432 ft
  • >>>
Offline

fans5383f7b5 Posted at 2018-4-21 14:26

Just viewed your video, can't see much of a flicker there.

Edit:- but that's at 1080P. could you post origonal 4k @ 24 fps in dropbox or similar ?
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Aardvark Posted at 2018-4-21 14:49
Just viewed your video, can't see much of a flicker there.

Check out the shadows in the trees on the lower right about halfway through the vid. Subtle, but there.
2018-4-21
Use props
Geebax
Captain
Australia
Offline

fans5383f7b5 Posted at 2018-4-21 14:47
Hmm,

Know of any work around in post for what I got?

No, but I don't see any 'flicker' in that clip anyway. What I do see, and only on the left and right of frame, is the normal movement artifact you get when using a moving shot and a slow frame rate. If that is what you are referring to, then there is no solution other than increasing the frame rate or avoiding the movement.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Geebax Posted at 2018-4-21 14:51
No, but I don't see any 'flicker' in that clip anyway. What I do see, and only on the left and right of frame, is the normal movement artifact you get when using a moving shot and a slow frame rate. If that is what you are referring to, then there is no solution other than increasing the frame rate or avoiding the movement.

Man, 8-9 seconds in on the tree shadows. I can see it clear as day, but maybe I'm crazy. I mean, I'm shooting at 1/48 there, and going higher shutter would make that choppier footage right? I've seen unproven claims that avoiding 4k would fix it, but otherwise the only thing I can think of is finding a fix in post.  
2018-4-21
Use props
Geebax
Captain
Australia
Offline

fans5383f7b5 Posted at 2018-4-21 14:55
Man, 8-9 seconds in on the tree shadows. I can see it clear as day, but maybe I'm crazy. I mean, I'm shooting at 1/48 there, and going higher shutter would make that choppier footage right? I've seen unproven claims that avoiding 4k would fix it, but otherwise the only thing I can think of is finding a fix in post.

Yes, a higher speed would only make the issue worse, and no, shooting in 4K would make no difference at all. What you are up against is the quite normal problem of a slow frame rate and a high rate of relative movement in the shot. You might be able to reduce it using a plug-in like Twixtor, but the real answer is to slow down the movement.
2018-4-21
Use props
Labroides
Captain
Flight distance : 9991457 ft
  • >>>
Australia
Offline

fans5383f7b5 Posted at 2018-4-21 14:50
Check out the shadows in the trees on the lower right about halfway through the vid. Subtle, but there.

Shadows?  What shadows?
I can't see any flicker or shadows.
It would be easier if the effect you are complaining was actually visible.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Geebax Posted at 2018-4-21 15:02
Yes, a higher speed would only make the issue worse, and no, shooting in 4K would make no difference at all. What you are up against is the quite normal problem of a slow frame rate and a high rate of relative movement in the shot. You might be able to reduce it using a plug-in like Twixtor, but the real answer is to slow down the movement.

Rodger that. Slowing down the movement I can do.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Labroides Posted at 2018-4-21 15:04
Shadows?  What shadows?
I can't see any flicker or shadows.
It would be easier if the effect you are complaining was actually visible.

What I'm complaining about are the dark areas of the trees on the right. If you don't see it that's chill. But it is there. Quite visible.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Aardvark Posted at 2018-4-21 14:49
Just viewed your video, can't see much of a flicker there.

Edit:- but that's at 1080P. could you post origonal 4k @ 24 fps in dropbox or similar ?

Link to Dropbox good sir!

https://www.dropbox.com/s/25pqbw ... ngton__029.MOV?dl=0
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Okay, so oddly enough, I put my sample video on my phone and viola, no flicker. I'm confused now.
2018-4-21
Use props
Geebax
Captain
Australia
Offline

fans5383f7b5 Posted at 2018-4-21 15:43
Okay, so oddly enough, I put my sample video on my phone and viola, no flicker. I'm confused now.

Yeah, that's normal too, your phone cannot display the full 1080 resolution, so it scales the video accordingly. This is also why some people cannot see the movement artifact either, because it does not show up that badly on a screen with a resolution of 1080 or higher.
2018-4-21
Use props
Bashy
Captain
Flight distance : 2354357 ft
  • >>>
United Kingdom
Offline

Strangely enough, when i was viewing the embedded video at 720p at the forum size i could see flickering, when i full screen it, it goes, at 1080, its not there either.... my display size is only 1366x768, this i5 plays 4k better than my AMD did
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
United States
Offline

Bashy Posted at 2018-4-21 19:52
Strangely enough, when i was viewing the embedded video at 720p at the forum size i could see flickering, when i full screen it, it goes, at 1080, its not there either.... my display size is only 1366x768, this i5 plays 4k better than my AMD did

Okay, so would that mean this is unfixable if exporting for viewing to a computer screen?
2018-4-21
Use props
Labroides
Captain
Flight distance : 9991457 ft
  • >>>
Australia
Offline

fans5383f7b5 Posted at 2018-4-21 20:11
Okay, so would that mean this is unfixable if exporting for viewing to a computer screen?

It means that it's not a problem in the original file.
It's caused by the size reduction to fit the device being viewed on.
Whether it shows up or not depends on the screen it's viewed on.
2018-4-21
Use props
fans5383f7b5
lvl.1
Flight distance : 101148 ft
Offline

Labroides Posted at 2018-4-21 21:57
It means that it's not a problem in the original file.
It's caused by the size reduction to fit the device being viewed on.
Whether it shows up or not depends on the screen it's viewed on.

Right on. Appreciate the help on that one
2018-4-22
Use props
SC Joe
lvl.1
Flight distance : 37966 ft
Offline

What you're calling flicker looks similar to something called the moire effect, because you have a scene with small bits of high contrast (snow and shadows)
2018-4-22
Use props
SC Joe
lvl.1
Flight distance : 37966 ft
United States
Offline

What you’re calling flicker looks like something called the Moire effect, which happens when small lines with high contrast have trouble being displayed on the monitor. That may be why you see it in the lower right corner where there is high contrast between snow and shadows. By the way, when I turn the brightness down on my monitor, the flicker goes away - turn up the brightness and it shows more across the screen. So, not frame rate issue but something related to the Moire effect.  
2018-4-22
Use props
Geebax
Captain
Australia
Offline

SC Joe Posted at 2018-4-22 21:53
What you’re calling flicker looks like something called the Moire effect, which happens when small lines with high contrast have trouble being displayed on the monitor. That may be why you see it in the lower right corner where there is high contrast between snow and shadows. By the way, when I turn the brightness down on my monitor, the flicker goes away - turn up the brightness and it shows more across the screen. So, not frame rate issue but something related to the Moire effect.

That does not apply when others can see it and some do not. There is no moire on my screen.
2018-4-22
Use props
SC Joe
lvl.1
Flight distance : 37966 ft
Offline

Geebax Posted at 2018-4-22 23:10
That does not apply when others can see it and some do not. There is no moire on my screen.

With video, the moire effect is caused by differences between the camera resolution, the screen resolution and the contrast, brightness, pattern and “resolution” (thin fine lines vs thick bold lines) of the subject being photographed.  A higher res monitor will be less likely to show moire but it could happen in different circumstances depending on all of the elements previously mention. So some people may see it and some may not depending on their monitor resolution and set up.  Back in the day of standard definition tv, (I’m referring to NTSC standard definition) the moire effect was more common because good quality broadcast cameras had their images displayed on standard def TVs and you could usually see a hounds tooth pattern of a sports jacket worn by the announcer buzz on the screen. That’s my history lesson for today. You kids keep off of my lawn!  I believe OP has already established that it’s not the frame rate causing the flicker. And others have commented that they see it differently on different monitors. So, it looks like moire to me.   Beautiful video scene BTW!   We don’t have that kind weather where I live.
2018-4-23
Use props
Geebax
Captain
Australia
Offline

SC Joe Posted at 2018-4-23 09:36
With video, the moire effect is caused by differences between the camera resolution, the screen resolution and the contrast, brightness, pattern and “resolution” (thin fine lines vs thick bold lines) of the subject being photographed.  A higher res monitor will be less likely to show moire but it could happen in different circumstances depending on all of the elements previously mention. So some people may see it and some may not depending on their monitor resolution and set up.  Back in the day of standard definition tv, (I’m referring to NTSC standard definition) the moire effect was more common because good quality broadcast cameras had their images displayed on standard def TVs and you could usually see a hounds tooth pattern of a sports jacket worn by the announcer buzz on the screen. That’s my history lesson for today. You kids keep off of my lawn!  I believe OP has already established that it’s not the frame rate causing the flicker. And others have commented that they see it differently on different monitors. So, it looks like moire to me.   Beautiful video scene BTW!   We don’t have that kind weather where I live.

Well, it is anybody's guess because he described it as flicker, and moire is not flicker, nor is the effect of low frame rate. The fact is, I don't see any flicker on my professional grade monitor, so that says the image is capable of being played properly on a good screen.
2018-4-23
Use props
SC Joe
lvl.1
Flight distance : 37966 ft
United States
Offline

Geebax Posted at 2018-4-23 15:29
Well, it is anybody's guess because he described it as flicker, and moire is not flicker, nor is the effect of low frame rate. The fact is, I don't see any flicker on my professional grade monitor, so that says the image is capable of being played properly on a good screen.

I could see it only in the lower right like he said. Then I turned up brightness and saw what looked like moire to me - so right, it actually looks like a very nice scene overall.
2018-4-24
Use props
Advanced
You need to log in before you can reply Login | Register now

Credit Rules